Global Patent Index - EP 1639305 A4

EP 1639305 A4 20090527 - DEHUMIDIFIER DRIER FOR PASTES, LIQUORS AND AGGREGATE MATERIALS

Title (en)

DEHUMIDIFIER DRIER FOR PASTES, LIQUORS AND AGGREGATE MATERIALS

Title (de)

ENTFEUCHTER-TROCKNER FÜR PASTEN, FLÜSSIGKEITEN UND MATERIALAGGREGATE

Title (fr)

SECHOIR DESHYDRATANT POUR PATES, LIQUEURS ET MATERIAUX GRANULES

Publication

EP 1639305 A4 20090527 (EN)

Application

EP 04748828 A 20040624

Priority

  • NZ 2004000133 W 20040624
  • NZ 52664803 A 20030624

Abstract (en)

[origin: WO2004113809A1] A process and apparatus for drying pastes, liquors and aggregate materials by means of a heat integrated and/or heat pumping process and/or apparatus is disclosed. This includes a heat pump or heat integrated apparatus operable in a drying apparatus with the heat pump evaporator (36) or cold heat exchanger in primary thermal contact with the drying gas medium (33) after said drying gas medium (33) has taken up moisture from the material being dried (35) and the heat pump condenser (14) or hot heat exchanger (36) in primary thermal contact with the material being dried and with both the drying gas medium (33) and any heat pump refrigerant in nominally closed loop circulation paths (22). This process and apparatus may provide improved efficiency and reduced costs by reducing the required flow of drying gas through the system since that drying gas is no longer the primary means for supplying heat to the material being dried.

IPC 8 full level

F26B 3/20 (2006.01); F26B 15/00 (2006.01); F26B 17/00 (2006.01); F26B 21/08 (2006.01); F26B 23/00 (2006.01)

CPC (source: EP US)

F26B 3/20 (2013.01 - EP US); F26B 21/086 (2013.01 - EP US); F26B 23/005 (2013.01 - EP US); Y02B 30/52 (2013.01 - EP US); Y02P 70/10 (2015.11 - EP US)

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

WO 2004113809 A1 20041229; AU 2004250091 A1 20041229; CA 2530060 A1 20041229; EP 1639305 A1 20060329; EP 1639305 A4 20090527; NZ 526648 A 20060331; US 2007169372 A1 20070726

DOCDB simple family (application)

NZ 2004000133 W 20040624; AU 2004250091 A 20040624; CA 2530060 A 20040624; EP 04748828 A 20040624; NZ 52664803 A 20030624; US 56170304 A 20040624